We are one of the largest manufacturers which is specialized in the research, manufacture and sales of hydraulic breaker and spare parts. Compared with other brand's products, our JMB series Hydraulic Breakers have more powerful stroke and reliable performances. JMB Model Total Weight Main Body Weight Length Working Pressure Oil flow range Impact Frequency Diameter of chisel Diameter of hose Applicable Excavator Box Silenced Type kg kg mm kg/m2 L/min bpm mm Inch Ton JMB200B 125 67 1327 90-120 20-30 700-1200 45 1/2 1.2-3.0 JMB300B 151 85 1413 90-120 25-50 600-1100 53 1/2 2.5-4.5 JMB400B 357 152 1656 110-140 40-70 500-900 68 1/2 4-7